ci2 starts bisection 2026-10-14 09:16:02.182977336 +0000 UTC m=+43367.154504034
bisecting fixing commit since aabd761612dbeb7d40750d485da219d11433718a
building syzkaller on 508909ea7a40f86e8559dc66f197abec6c862b01
ensuring issue is reproducible on original commit aabd761612dbeb7d40750d485da219d11433718a

testing commit aabd761612dbeb7d40750d485da219d11433718a gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: d4743cb8fefeec0f703d0b9a9694c1d4a7664b5c5d0c4ea2bc6c32cd3c99a66d
all runs: crashed: BUG: corrupted list in flow_block_cb_setup_simple
representative crash: BUG: corrupted list in flow_block_cb_setup_simple, types: [MEMORY_SAFETY_BUG]
check whether we can drop unnecessary instrumentation
disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed
testing commit aabd761612dbeb7d40750d485da219d11433718a gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 71abcd0add2815f2a687db81592e16f920c03377bbae29bfa70f76e14efa6ca2
run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #1: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #4: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #6: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #7: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
representative crash: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple, types: [NULL-POINTER-DEREFERENCE MEMORY_SAFETY_BUG]
the bug reproduces without the instrumentation
disabling configs for [memleak ubsan kasan locking atomic_sleep hang], they are not needed
kconfig minimization: base=3708 full=7427 leaves diff=2099
split chunks (needed=false): <2099>
split chunk #0 of len 2099 into 5 parts
testing without sub-chunk 1/5
disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit aabd761612dbeb7d40750d485da219d11433718a gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: a4c316a7abfbe75aab690a54304f8252b57c13c2bc59660b094e1d40e2de5a59
run #0: crashed: general protection fault in flow_block_cb_setup_simple
run #1: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #2: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
representative crash: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple, types: [NULL-POINTER-DEREFERENCE MEMORY_SAFETY_BUG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit aabd761612dbeb7d40750d485da219d11433718a gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: b921f6e3effb196404e21441ecc73c29f1fb3350b65004922a0c095b7e7dbebb
run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #6: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
representative crash: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple, types: [NULL-POINTER-DEREFERENCE]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed
testing commit aabd761612dbeb7d40750d485da219d11433718a gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: c8de91ffb919a05cff00a23ba2e9f3045b02b1035a6eccf2d3db82f0327856db
all runs: OK
false negative chance: 0.000
testing without sub-chunk 4/5
disabling configs for [ubsan kasan locking atomic_sleep hang memleak], they are not needed
testing commit aabd761612dbeb7d40750d485da219d11433718a gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: eedb787b151e9a02cb753c33451c3893ae5208773f1426d8177d7272c4fed5f2
run #0: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #1: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #2: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #3: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #4: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #5: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #7: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #8: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
representative crash: BUG: corrupted list in flow_block_cb_setup_simple, types: [MEMORY_SAFETY_BUG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [ubsan kasan locking atomic_sleep hang memleak], they are not needed
testing commit aabd761612dbeb7d40750d485da219d11433718a gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: bc7922cfbe5f1510d8496cc261d021ad99e33044c55bd51b0dcb9a818356576e
run #0: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #1: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #4: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #5: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #6: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #7: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #8: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #9: crashed: no output from test machine
representative crash: BUG: corrupted list in flow_block_cb_setup_simple, types: [MEMORY_SAFETY_BUG NULL-POINTER-DEREFERENCE]
the chunk can be dropped
minimized to 420 configs; suspects: [AX25 BRIDGE BRIDGE_NETFILTER CAN CFG80211 CHECKPOINT_RESTORE DVB_CORE FB FSCACHE HAMRADIO HSR INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_USER_ACCESS INPUT_JOYSTICK INPUT_MOUSE IP6_NF_RAW IPV6_MULTIPLE_TABLES IP_NF_RAW IP_SET IP_SET_HASH_NETPORT IP_SET_HASH_NETPORTNET IP_SET_LIST_SET IP_VS IP_VS_DH IP_VS_FO IP_VS_FTP IP_VS_IPV6 IP_VS_LBLC IP_VS_LBLCR IP_VS_LC IP_VS_MH IP_VS_NFCT IP_VS_NQ IP_VS_OVF IP_VS_PE_SIP IP_VS_PROTO_AH IP_VS_PROTO_AH_ESP IP_VS_PROTO_ESP IP_VS_PROTO_SCTP IP_VS_PROTO_TCP IP_VS_PROTO_UDP IP_VS_RR IP_VS_SED IP_VS_SH IP_VS_TWOS IP_VS_WLC IP_VS_WRR IRQ_BYPASS_MANAGER IRQ_POLL IR_IGORPLUGUSB IR_IGUANA IR_IMON IR_IMON_RAW IR_MCEUSB IR_REDRAT3 IR_STREAMZAP IR_TOY IR_TTUSBIR ISA_BUS ISDN ISDN_CAPI_MIDDLEWARE JFFS2_CMODE_PRIORITY JFFS2_COMPRESSION_OPTIONS JFFS2_FS JFFS2_FS_POSIX_ACL JFFS2_FS_SECURITY JFFS2_FS_WRITEBUFFER JFFS2_FS_XATTR JFFS2_LZO JFFS2_RTIME JFFS2_RUBIN JFFS2_SUMMARY JFFS2_ZLIB JFS_DEBUG JFS_FS JFS_POSIX_ACL JFS_SECURITY JOYSTICK_IFORCE JOYSTICK_IFORCE_USB JOYSTICK_PXRC JOYSTICK_XPAD JOYSTICK_XPAD_FF JOYSTICK_XPAD_LEDS KARMA_PARTITION KCOV KCOV_ENABLE_COMPARISONS KCOV_INSTRUMENT_ALL KEYS_REQUEST_CACHE KEY_DH_OPERATIONS KEY_NOTIFICATIONS KSM KVM KVM_AMD KVM_ASYNC_PF KVM_COMPAT KVM_GENERIC_DIRTYLOG_READ_PROTECT KVM_INTEL KVM_MMIO KVM_VFIO KVM_XEN KVM_XFER_TO_GUEST_WORK L2TP L2TP_ETH L2TP_IP L2TP_V3 LAPB LAPBETHER LDM_PARTITION LEDS_TRIGGER_AUDIO LEGACY_PTYS LIBNVDIMM LINEAR_RANGES LLC LLC2 LOGIG940_FF LOGIRUMBLEPAD2_FF LOGO LOGO_LINUX_MONO LOGO_LINUX_VGA16 LPC_ICH LWTUNNEL LWTUNNEL_BPF LZ4HC_COMPRESS LZ4_COMPRESS MAC80211 MAC80211_DEBUGFS MAC80211_HAS_RC MAC80211_HWSIM MAC80211_MESH MAC80211_RC_DEFAULT_MINSTREL MAC80211_RC_MINSTREL MACSEC MACVLAN MACVTAP MAC_PARTITION MAPPING_DIRTY_HELPERS MDIO_MVUSB MD_LINEAR MD_MULTIPATH MD_RAID0 MD_RAID1 MD_RAID10 MD_RAID456 MEDIA_ANALOG_TV_SUPPORT MEDIA_ATTACH MEDIA_CONTROLLER MEDIA_CONTROLLER_DVB MEDIA_CONTROLLER_REQUEST_API MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_SUPPORT_FILTER MEDIA_TUNER MEDIA_TUNER_MSI001 MEDIA_TUNER_XC2028 MEDIA_TUNER_XC5000 MEMORY_BALLOON MEMORY_HOTPLUG MEMORY_HOTPLUG_DEFAULT_ONLINE MEMORY_ISOLATION MEMREGION MEMSTICK MEMSTICK_REALTEK_USB MEM_SOFT_DIRTY MFD_CORE MFD_SYSCON MHI_BUS MHI_WWAN_CTRL MHP_MEMMAP_ON_MEMORY MICROCHIP_PHY MINIX_FS MINIX_SUBPARTITION MISC_RTSX MISC_RTSX_USB MISDN MISDN_DSP MISDN_HFCUSB MISDN_L1OIP MITIGATION_TSA MITIGATION_VMSCAPE MKISS MLX4_CORE MLX4_INFINIBAND MMC MMC_REALTEK_USB MMC_USHC MMC_VUB300 MMU_NOTIFIER MODULE_SRCVERSION_ALL MODVERSIONS MOST MOST_USB_HDM MOUSE_APPLETOUCH MOUSE_BCM5974 MOUSE_PS2 MOUSE_PS2_ALPS MOUSE_PS2_BYD MOUSE_PS2_CYPRESS MOUSE_PS2_FOCALTECH MOUSE_PS2_LIFEBOOK MOUSE_PS2_LOGIPS2PP MOUSE_PS2_SMBUS MOUSE_PS2_SYNAPTICS MOUSE_PS2_SYNAPTICS_SMBUS MOUSE_PS2_TRACKPOINT MOUSE_SYNAPTICS_USB MPLS MPLS_IPTUNNEL MPLS_ROUTING MPTCP MPTCP_IPV6 MRP MTD MTD_BLKDEVS MTD_BLOCK MTD_BLOCK2MTD MTD_CFI_I1 MTD_CFI_I2 MTD_MAP_BANK_WIDTH_1 MTD_MAP_BANK_WIDTH_2 MTD_MAP_BANK_WIDTH_4 MTD_MTDRAM MTD_PHRAM MTD_SLRAM MUSB_PIO_ONLY ND_BLK ND_BTT ND_CLAIM ND_PFN NETDEVSIM NETFILTER_ADVANCED NETFILTER_FAMILY_ARP NETFILTER_FAMILY_BRIDGE NETFILTER_NETLINK_ACCT NETFILTER_NETLINK_GLUE_CT NETFILTER_NETLINK_OSF NETFILTER_NETLINK_QUEUE NETFILTER_SYNPROXY NETFILTER_XT_CONNMARK NETFILTER_XT_MATCH_BPF NETFILTER_XT_MATCH_CGROUP NETFILTER_XT_MATCH_CLUSTER NETFILTER_XT_MATCH_COMMENT NETFILTER_XT_MATCH_CONNBYTES NETFILTER_XT_MATCH_CONNLABEL NETFILTER_XT_MATCH_CONNLIMIT NETFILTER_XT_MATCH_CONNMARK NETFILTER_XT_MATCH_CPU NETFILTER_XT_MATCH_DCCP NETFILTER_XT_MATCH_DEVGROUP NETFILTER_XT_MATCH_DSCP NETFILTER_XT_MATCH_ECN NETFILTER_XT_MATCH_ESP NETFILTER_XT_MATCH_HASHLIMIT NETFILTER_XT_MATCH_HELPER NETFILTER_XT_MATCH_HL NETFILTER_XT_MATCH_IPCOMP NETFILTER_XT_MATCH_IPRANGE NETFILTER_XT_MATCH_IPVS NETFILTER_XT_MATCH_L2TP NETFILTER_XT_MATCH_LENGTH NETFILTER_XT_MATCH_LIMIT NETFILTER_XT_MATCH_MAC NETFILTER_XT_MATCH_MARK NETFILTER_XT_MATCH_MULTIPORT NETFILTER_XT_MATCH_NFACCT NETFILTER_XT_MATCH_OSF NETFILTER_XT_MATCH_OWNER NETFILTER_XT_MATCH_PHYSDEV NETFILTER_XT_MATCH_PKTTYPE NETFILTER_XT_MATCH_QUOTA NETFILTER_XT_MATCH_RATEEST NETFILTER_XT_MATCH_REALM NETFILTER_XT_MATCH_RECENT NETFILTER_XT_MATCH_SCTP NETFILTER_XT_MATCH_SOCKET NETFILTER_XT_MATCH_STATISTIC NETFILTER_XT_MATCH_STRING NETFILTER_XT_MATCH_TCPMSS NETFILTER_XT_MATCH_TIME NETFILTER_XT_MATCH_U32 NETFILTER_XT_SET NETFILTER_XT_TARGET_AUDIT NETFILTER_XT_TARGET_CHECKSUM NETFILTER_XT_TARGET_CLASSIFY NETFILTER_XT_TARGET_CONNMARK NETFILTER_XT_TARGET_CT NETFILTER_XT_TARGET_DSCP NETFILTER_XT_TARGET_HL NETFILTER_XT_TARGET_HMARK NETFILTER_XT_TARGET_IDLETIMER NETFILTER_XT_TARGET_LED NETFILTER_XT_TARGET_MARK NETFILTER_XT_TARGET_NETMAP NETFILTER_XT_TARGET_NFQUEUE NETFILTER_XT_TARGET_NOTRACK NETFILTER_XT_TARGET_RATEEST NETFILTER_XT_TARGET_REDIRECT NETFILTER_XT_TARGET_TCPOPTSTRIP NETFILTER_XT_TARGET_TEE NETFILTER_XT_TARGET_TPROXY NETFILTER_XT_TARGET_TRACE NETFS_SUPPORT NETLABEL NETLINK_DIAG NETROM NET_9P_RDMA NET_ACT_BPF NET_ACT_CONNMARK NET_ACT_CSUM NET_ACT_CT NET_ACT_CTINFO NET_ACT_GATE NET_ACT_IFE NET_ACT_IPT NET_ACT_MPLS NET_ACT_NAT NET_ACT_PEDIT NET_ACT_POLICE NET_ACT_SAMPLE NET_ACT_SIMP NET_ACT_SKBEDIT NET_ACT_SKBMOD NET_ACT_TUNNEL_KEY NET_ACT_VLAN NET_CLS_BASIC NET_CLS_BPF NET_CLS_CGROUP NET_CLS_FLOW NET_CLS_FLOWER NET_CLS_FW NET_CLS_MATCHALL NET_CLS_ROUTE4 NET_DEVLINK NET_DROP_MONITOR NET_DSA NET_DSA_TAG_BRCM NET_DSA_TAG_BRCM_COMMON NET_DSA_TAG_BRCM_PREPEND NET_DSA_TAG_MTK NET_DSA_TAG_QCA NET_DSA_TAG_RTL4_A NET_EGRESS NET_EMATCH_CANID NET_EMATCH_CMP NET_EMATCH_IPSET NET_EMATCH_IPT NET_EMATCH_META NET_EMATCH_NBYTE NET_EMATCH_TEXT NET_EMATCH_U32 NET_FC NET_FOU NET_FOU_IP_TUNNELS NET_IFE NET_IFE_SKBMARK NET_IFE_SKBPRIO NET_IFE_SKBTCINDEX NET_IPGRE NET_IPGRE_BROADCAST NET_IPGRE_DEMUX NET_IPIP NET_IPVTI NET_KEY NET_KEY_MIGRATE NET_L3_MASTER_DEV NET_MPLS_GSO NET_NCSI NET_NSH NET_REDIRECT NET_SCH_CAKE NET_SCH_CBS NET_SCH_CHOKE NET_SCH_CODEL NET_SCH_DRR NET_SCH_ETF NET_SCH_ETS NET_SCH_FQ NET_SCH_FQ_CODEL NET_SCH_FQ_PIE NET_SCH_GRED NET_SCH_HFSC NET_SCH_HHF NET_SCH_HTB NET_SCH_INGRESS NET_SCH_MQPRIO NET_SCH_MULTIQ NET_SCH_NETEM NET_SCH_PIE NET_SCH_PLUG NET_SCH_PRIO NET_SCH_QFQ NET_SCH_RED NET_SCH_SFB NET_SCH_SFQ NET_SCH_SKBPRIO NET_SCH_TAPRIO NET_SCH_TBF NET_SCH_TEQL NET_SOCK_MSG NET_SWITCHDEV NET_TC_SKB_EXT NET_TEAM NET_TEAM_MODE_ACTIVEBACKUP NET_TEAM_MODE_BROADCAST NET_TEAM_MODE_LOADBALANCE NET_TEAM_MODE_RANDOM NET_TEAM_MODE_ROUNDROBIN NET_UDP_TUNNEL NET_VRF NFC NFC_DIGITAL NFC_FDP NFC_HCI NFC_MRVL NFC_MRVL_USB NFC_NCI NFC_NCI_UART NFC_PN533 NFC_PN533_USB NFC_PORT100 NFC_SHDLC NFC_SIM NFC_VIRTUAL_NCI NFSD NFSD_BLOCKLAYOUT NFSD_FLEXFILELAYOUT NFSD_PNFS NFSD_SCSILAYOUT NFSD_V3_ACL NFSD_V4 NFSD_V4_2_INTER_SSC NFSD_V4_SECURITY_LABEL NFS_FSCACHE NFS_V4_1 NFS_V4_2 NFS_V4_2_READ_PLUS NFS_V4_2_SSC_HELPER NFS_V4_SECURITY_LABEL NFT_BRIDGE_META NFT_BRIDGE_REJECT NFT_COMPAT NFT_CONNLIMIT NFT_COUNTER NFT_CT NFT_DUP_IPV4 NFT_DUP_IPV6 NFT_DUP_NETDEV NFT_FIB NFT_FIB_INET NFT_FIB_IPV4 NFT_FIB_IPV6 NFT_FIB_NETDEV NFT_FLOW_OFFLOAD NFT_HASH NFT_LIMIT NFT_LOG NFT_MASQ NFT_NAT NFT_NUMGEN NFT_OBJREF NFT_OSF NFT_QUEUE NFT_QUOTA NFT_REDIR NFT_REJECT NFT_REJECT_INET NFT_REJECT_IPV4 NFT_REJECT_IPV6 NFT_REJECT_NETDEV NFT_SOCKET NFT_SYNPROXY NFT_TPROXY NFT_TUNNEL NFT_XFRM NF_CONNTRACK_AMANDA NF_CONNTRACK_BRIDGE NF_CONNTRACK_BROADCAST NF_CONNTRACK_EVENTS NF_CONNTRACK_H323 NF_CONNTRACK_LABELS NF_CONNTRACK_MARK NF_CONNTRACK_NETBIOS_NS NF_CONNTRACK_PPTP NF_CONNTRACK_SANE NF_CONNTRACK_TFTP NF_CONNTRACK_TIMEOUT NF_CONNTRACK_TIMESTAMP NF_CONNTRACK_ZONES NF_CT_NETLINK_HELPER NF_CT_NETLINK_TIMEOUT NF_CT_PROTO_DCCP NF_CT_PROTO_GRE NF_CT_PROTO_SCTP NF_CT_PROTO_UDPLITE NF_DUP_IPV4 NF_DUP_IPV6 NF_DUP_NETDEV NF_FLOW_TABLE NF_FLOW_TABLE_INET NF_FLOW_TABLE_IPV4 NF_FLOW_TABLE_IPV6 NF_NAT_AMANDA NF_NAT_H323 NF_NAT_PPTP NF_TABLES NF_TABLES_BRIDGE NF_TABLES_INET NF_TABLES_IPV4 NF_TABLES_IPV6 NF_TABLES_NETDEV PARTITION_ADVANCED PSAMPLE RC_CORE RC_DEVICES RFKILL SPI USB_GADGET USB_MUSB_HDRC VIDEO_DEV VIDEO_V4L2 WAN WATCH_QUEUE WIRELESS WLAN WWAN X25]
disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed
testing current HEAD a051a4bf909f76f470ccb3761ee0cf6e2395616e
testing commit a051a4bf909f76f470ccb3761ee0cf6e2395616e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 731e016b1410d6346f812328a2a698436dc013221b4357601600c128975cbc53
run #0: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #1: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in flow_block_cb_setup_simple
run #3: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #4: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #5: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #6: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #7: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #8: crashed: BUG: corrupted list in flow_block_cb_setup_simple
run #9: crashed: BUG: corrupted list in flow_block_cb_setup_simple
representative crash: BUG: corrupted list in flow_block_cb_setup_simple, types: [MEMORY_SAFETY_BUG]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 2h1m38.096379051s (build: 38m37.428811013s, test: 1h13m29.301403566s)
crash still not fixed or there were kernel test errors
commit msg: Linux 5.15.222
crash: BUG: corrupted list in flow_block_cb_setup_simple
list_del corruption. prev->next should be ffff88811d643480, but was ffff888101debf00
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:59!
invalid opcode: 0000 [#1] SMP
CPU: 1 PID: 6156 Comm: syz.1.286 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:__list_del_entry_valid.cold+0x31/0x69 lib/list_debug.c:59
Code: 05 3d 83 e8 98 55 fe ff 0f 0b 48 c7 c7 f8 06 3d 83 e8 8a 55 fe ff 0f 0b 48 89 f2 48 89 fe 48 c7 c7 b8 06 3d 83 e8 76 55 fe ff <0f> 0b 48 89 fe 4c 89 c2 48 c7 c7 80 06 3d 83 e8 62 55 fe ff 0f 0b
RSP: 0018:ffffc90000187658 EFLAGS: 00010282
RAX: 0000000000000054 RBX: ffff88811d643480 RCX: ffffffff812f69ac
RDX: 0000000000000000 RSI: ffffffff81204faa RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffffc900001876c0
R13: ffff88811d643490 R14: ffffc900001876e0 R15: ffffc900001876e0
FS:  00007fa0206e96c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000000c0 CR3: 000000011cbc4000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_del_entry include/linux/list.h:139 [inline]
 list_del include/linux/list.h:153 [inline]
 flow_block_cb_setup_simple+0x159/0x310 net/core/flow_offload.c:320
 nsim_setup_tc+0x50/0x70 drivers/net/netdevsim/netdev.c:221
 nft_block_offload_cmd+0xa9/0x150 net/netfilter/nf_tables_offload.c:392
 nft_chain_offload_cmd net/netfilter/nf_tables_offload.c:446 [inline]
 nft_flow_block_chain+0x85/0x1a0 net/netfilter/nf_tables_offload.c:466
 nft_flow_offload_chain net/netfilter/nf_tables_offload.c:505 [inline]
 nft_flow_rule_offload_abort+0x2c2/0x2d0 net/netfilter/nf_tables_offload.c:524
 nft_flow_rule_offload_commit+0x2e5/0x2f0 net/netfilter/nf_tables_offload.c:612
 nf_tables_commit+0x532/0x1b00 net/netfilter/nf_tables_api.c:9534
 nfnetlink_rcv_batch+0x539/0xd30 net/netfilter/nfnetlink.c:564
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:634 [inline]
 nfnetlink_rcv+0x1f9/0x220 net/netfilter/nfnetlink.c:652
 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
 netlink_unicast+0x42f/0x570 net/netlink/af_netlink.c:1340
 netlink_sendmsg+0x396/0x710 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:706 [inline]
 __sock_sendmsg+0x56/0x80 net/socket.c:718
 ____sys_sendmsg+0x36f/0x390 net/socket.c:2446
 ___sys_sendmsg+0x8b/0xd0 net/socket.c:2500
 __sys_sendmsg+0x88/0x100 net/socket.c:2529
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x33/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fa0208880d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa0206e9028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa020b0ffa0 RCX: 00007fa0208880d9
RDX: 0000000000000000 RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007fa02091f024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa020b10038 R14: 00007fa020b0ffa0 R15: 00007fff0fbbf208
 </TASK>
Modules linked in:
---[ end trace a6d6eb1933ecea50 ]---
RIP: 0010:__list_del_entry_valid.cold+0x31/0x69 lib/list_debug.c:59
Code: 05 3d 83 e8 98 55 fe ff 0f 0b 48 c7 c7 f8 06 3d 83 e8 8a 55 fe ff 0f 0b 48 89 f2 48 89 fe 48 c7 c7 b8 06 3d 83 e8 76 55 fe ff <0f> 0b 48 89 fe 4c 89 c2 48 c7 c7 80 06 3d 83 e8 62 55 fe ff 0f 0b
RSP: 0018:ffffc90000187658 EFLAGS: 00010282
RAX: 0000000000000054 RBX: ffff88811d643480 RCX: ffffffff812f69ac
RDX: 0000000000000000 RSI: ffffffff81204faa RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffffc900001876c0
R13: ffff88811d643490 R14: ffffc900001876e0 R15: ffffc900001876e0
FS:  00007fa0206e96c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000000c0 CR3: 000000011cbc4000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400